diff --git a/axi/device.py b/axi/device.py
index 64a9f97..2b43cae 100644
--- a/axi/device.py
+++ b/axi/device.py
@@ -25,8 +25,8 @@ PEN_DOWN_SPEED = 150
 PEN_DOWN_DELAY = 0
 
 ACCELERATION = 8
-MAX_VELOCITY = 8
-CORNER_FACTOR = 0.0005
+MAX_VELOCITY = 2
+CORNER_FACTOR = 0.001
 
 VID_PID = '04D8:FD92'
 
diff --git a/axi/paths.py b/axi/paths.py
index c90dc16..e601712 100644
--- a/axi/paths.py
+++ b/axi/paths.py
@@ -18,7 +18,7 @@ def simplify_path(points, tolerance):
     if len(points) < 2:
         return points
     line = LineString(points)
-    line = line.simplify(tolerance)
+    line = line.simplify(tolerance, preserve_topology=False)
     return list(line.coords)
 
 def simplify_paths(paths, tolerance):